Bowing to pressure from the Republican-run Congress and abroad, the White House signed off on the proposal after a fight that pitted the president against members of his own party and threatened to further tarnish a U.S. image already soiled by the abuses at Iraq's Abu Ghraib prison.

Bush said the ban and accompanying interrogation standards will "make it clear to the world that this government does not torture and that we adhere to the international convention of torture, whether it be here at home or abroad."

Associated Press

President Bush shakes hands Thursday with Sen. John McCain, R-Ariz., in the Oval Office of the White House. The White House has agreed to McCain's proposal to ban cruel treatment of prisoners.

After months of fierce negotiations, McCain declared "a done deal" that he said shows that the United States "upholds values and standards of behavior and treatment of all people, no matter how evil or bad they are."

"We've sent a message to the world that the United States is not like the terrorists," the Arizona Republican said while appearing alongside the president in the Oval Office to announce the agreement.

The agreement still needs to be approved by Congress.

The deal keeps McCain's original proposal, which was overwhelmingly approved by the Senate and endorsed by the House. One of the final stumbling blocks in negotiations was removed when language was added allowing CIA interrogators the same legal protections as those afforded to military interrogators.

Those rules say the accused can defend themselves by arguing it was reasonable for them to believe they were obeying a legal order. The government also would provide counsel for accused interrogators.